21302441100 has 90 divisors (see below), whose sum is σ = 69054124524. Its totient is φ = 5680648800.

The previous prime is 21302441063. The next prime is 21302441117. The reversal of 21302441100 is 114420312.

21302441100 is a `hidden beast` number, since 213 + 0 + 2 + 441 + 10 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (90).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 1306866 + ... + 1323065.

Almost surely, 2^21302441100 is an apocalyptic number.

21302441100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21302441100 is an abundant number, since it is smaller than the sum of its proper divisors (47751683424).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21302441100 is a wasteful number, since it uses less digits than its factorization.

21302441100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2629957 (or 2629941 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 21302441100 its reverse (114420312), we get a palindrome (21416861412).

The spelling of 21302441100 in words is "twenty-one billion, three hundred two million, four hundred forty-one thousand, one hundred".